Partition in sql

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Partition in sql

Piyushbhatt

Old Hand

Points: 374

April 13, 2023 at 8:48 pm

#4173692

I have the following data frame:

df = pd.DataFrame({'A': [6,0,  4,2,  8, 2,  6,0, 4,8],
                   'B': range(0, 12),
                   'C': ['a', 'b','c', 'd', 'e','a', 'b','c', 'd', 'e']})
    A   B   C
0   6   0   a
1   0   1   b
2   4   2   c
3   2   3   d
4   8   4   e
--------------- partition by C
5   2   5   a
6   6   6   b
7   0   7   c
8   4   8   d
9   8   9   e

My final data frame is as follows:

import pandas as pd
import random as rand
df = pd.DataFrame({'A': [0, 2, 4, 6, 8,0, 2, 4, 6, 8],
                   'B': range(0, 12),
                   'C': ['a', 'b','c', 'd', 'e','a', 'b','c', 'd', 'e']})
A   B   C
0   0   0   a
1   2   1   b
2   4   2   c
3   6   3   d
4   8   4   e
--------------- partition by C
5   0   5   a
6   2   6   b
7   4   7   c
8   6   8   d
9   8   9   e

As you can see, I have a partition from a to e in the C column of the data frame, and I need to sort the A column depending on the partitions in C. I couldn't come up with a good solution. This is similar to Partition by in SQL.

I need to sort the values of two columns partition by partition, just like we do in SQL partition by partition, as described in this manual. In this case, I explain why I require it.

May 16, 2023 at 8:11 am

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Site Owners SSC Guru Points: 80320 More actions · Answer 1

Thanks for posting your issue and hopefully someone will answer soon.

This is an automated bump to increase visibility of your question.

SQLWizard Grasshopper Points: 21 More actions · Answer 2

Have you tried using groupby() and apply() functions in pandas?